公开(公告)号：US3641305A

公开(公告)日：1972-02-08

申请号：US3641305D

申请日：1970-04-20

Applicant: OMARK INDUSTRIES INC

Inventor： RITTER RALPH KENNETH ,  PEASE CHARLES C ,  FAY ELLIOTT J

IPC: B23K9/20

CPC classification number: B23K9/202

Abstract: Apparatus and method for welding hollow studs (spuds) over a hole in a workpiece which includes the use of a hollow arc shield disposed within the hollow spud and having one end thereof projecting into the hole in the workpiece to provide alignment for the spud over the hole and to maintain the hole free of molten metal during the welding operation. The spud preferably includes a chamfer in the weldable end thereof. The chuck for retaining the spud includes a second chuck therein for retaining one end of the internal arc shield and serves both as a retainer for the arc shield and as a stop member for the spud.

Abstract translation: 用于在工件上的孔上焊接中空螺柱（轴）的装置和方法，其包括使用设置在中空立柱内的中空弧形防护罩，并且其一端突出到工件中的孔中以提供对准 并且在焊接操作期间保持孔没有熔融金属。 该突出物优选地在其可焊接端包括倒角。 用于保持立柱的卡盘包括用于保持内部电弧屏蔽的一端的第二卡盘，并且用作电弧屏蔽的保持器和用作支脚的止动构件。